Al Kite answered his door in Aurora, Colorado in 2004, to let in a prospective renter who he had met before. He had just finished talking with his girlfriend on the phone and it was the last time anyone Al knew would speak with him. He was found two days later, tortured and murdered in his basement. The killer would live in his house for the weekend, sleep in his bed, wear his clothes and drive his car to the ATM to get cash from Al's account. To top it all off, the killer has never been caught.